Question

If its slant hieght is 21 M and dia-
meter of its base is 24M find curved surface of cone​

Answer 1

Given :

⬤ Slant Height of Cone is 21 m .

⬤ Diameter of its Base is 24 m .

To Find :

⬤ Curved Surface Area of Cone .

Formula Used :

$\bf[\:{Curved\:Surface\:Area\:of\:Cone=\pi{r}l}\:]$

• r = radius
• l = slant height

Solution :

• Slant Height (l) = 21 m.
• Diamater (d) = 24 m.

Now :

First , We have to Calculate Radius of the Cone .

Diamater = 24

Radius = 24/2

Radius = 12 m

According to the Formula :-

πrl

22/7 × 12 × 21

22 × 12 × 3

792

Therefore , The Curved Surface Area of Cone is 792 m² .